1、t MIL-F-b30b 13 7797706 03q3325 5 I MIL-F-63068 (PA) 14 July i976 MILITARY SPECIFICATION FUZE, M539, IMPACT SWITCH ASSEMBLY FOR, PARTS FOR, ASSEMBLING AND PACKING This specification is approved for use by Picatinny Arsenal, Department of the Army, and is available for use by all Departments and Agen
2、cies of the Department of Defense. 1. SCOPE 1.1 This Military Specification covers parts for assembling and packing of Fuze, M539, Impact Switch Assembly, 2. APPLICABLE DOCUMENTS .2*1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of
3、 this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-116 MIL-B-117 MIL-B-3106 MI L-A- 4 8 O 7 8 MIL-1-45607 MIL-F-50449 FEDERAL L-P-378 - Preservation - Packaging, Methods Of - Bag, Sleeve and Tubing - Interior Packaging - Board, Composition, Water-resistant, Solid.(For
4、Filler or Cushioning Pads) - Ammunition, Standard Quality Assurance Provisions, General Specification for - Inspection Equipment, Supgly and Maintenance of - Filler, Sheet Form (For Use In Ammunition Containers) - Plastic Sheet and Strip, Thin Gauge, Polyolefin Provided by IHSNot for ResaleNo reprod
5、uction or networking permitted without license from IHS-,-,-MIL-F-63068 13 E 7779706 0343326 7 W MIL-F-6306.8 (PA) PPP-B-601 - Box, Wood, Cleated Plywood PPP-B-636 - Box, Shipping, Fiberboard STANDARDS MILITARY MIL-STD-1169 - Packaging, Packing And Marking for Shipment of Inert Ammunition Components
6、 DRAWINGS PICATINNY ARSENAL PRODUCT AND PACKAGE DRAWINGS 9276238 - Power Supply, Fuze, M539 9276237 - Impact Switch Assembly, Fuze, M539 9 29 32 88 - Projectile, l52MM, HEAT-T-MP, M409A2, Loading Assembly 9294989 - Cartridge, l52MM, HEAT-T-MP, M409A2 - FRANKFORD ARSENAL 10534412 - Windshield 1053441
7、7 - Insulator Assembly 3. REQUIREMENTS 3.1 General. -Materials and parts shall be in accordance with applicable drawings and specifications. 3.2 Impact Switch.,-The impact switch shall comply with all requirements specified on dwg. 9276237 and with allre- quirements specified in applicable specifica
8、tions. 3.3 Workmanship.-All parts and assemblies shall be free of chips, dirt, grease, rust, burrs, cracks and other foreign material. The cleaning methods used shall not be injurious to any of the parts, nor shall the parts be contaminated by the cleaning agents. 3.4 Proving Ground.-The applicable
9、loaded projectile shall comply with the following requirements when assembled with an impact switch and tested-as specified in 4.514. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63068 13 m 7797706 03Li3327 7 m MIL-F-63068 3.4.1 Graze Functi
10、oning.-The projectile shall detonate Ihigh-orderll on initial impact with a gravel pad located 1000 - + 200 meters from the gun muzzle. 3.1i.2 Safety.-There shall be no indication of impact switch separation or breakup in the gun bore or in flight prior to impact. 3.5 First Article Inspection.-This
11、specification con- tains technical provisions for first article inspection. Re- quirements for the submission of first article samples by the contractor shall be as specified in the contract. 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection and Standard Quality Assurance Provisions.
12、-Unless otherwise specified herein or in the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. of inspection shall be conducted on this item: 4.2 Classification of Inspections.-The following types a. First Article Inspection b. Quality Confo
13、rmance Inspection 4.3 First Article Inspection 4.3;i Submission.-The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance with provisions of 4.3.2. The first article sample shall consist of 10 each of every component and every assembly.
14、 (Where a multiple cavity mold is used in the manufacturing process, a minimum of 5 samples shall be sub- mitted from each mold cavity. Each part shall be identified with its mold cavity). Inspections to be Performed.-The First Article parts submitted in accordance with paragraph 4.3.1 will be subje
15、cted by the Government to all examinations and tests specified in 4.4.2 of this specification and to any or all requirements of the applicable drawings. 5 each of the sample assemblies (2 each if multiple cavity mold is used) shall be temperature conditioned at 1.80 + 10F for 24 + 1 hours and then h
16、eld at room ambient temperature for 4 hours minimum prior to inspection. 4.3.2 4.3.3 Bejection.-See MIL-A-48078 (PA). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
17、se from IHS-,-,-Co o O m W di c 8 VI W 6 I- 00 c VI w n o LL W Z O r= k 4 I 4 VI u MIL-F-63068 13 W 7777706 0393329 2 E e * 0000000000000 O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CU 8 CU wc 3 W MIL-F-b306 13 9797906 0343330 7 M 02 O .$ 8 O 5
18、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-F-b30b 13 7777706 0343331 O d Ir. O d I- W W zi *.e . 0 O00 o O00 O0 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-F-63068 13 7777706,034
19、3332 2 = I ri Lr O ri n In al aJ u2 9 Y . o O00 O0 O0 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63064 13 M 7797706 0393333 M MIL-F-63068 (PA) 4.4.3 Testing 4.4.3.1 Proving Ground 4.4.3.1.1 Graze Functioning.-A sample of twenty (20) impa
20、ct switches shall be randomly selected from each lot for this test. Each sample switch shall be assembled onto a cartridge comprised of components (projectile, fuze, shaped-charge liner, etc.) previ- ously tested and accepted in accordance with applicable specifi- cations. If six (6) or more cartrid
21、ges fail to comply with the applicable requirement, the impact switch lot shall be rejected. If one (1) or more projectiles fail to initially impact the gravel pad, the impact switch lot shall be referred and results of such impacts shall be reported. 4.4.3.1.2 Safety.-All cartridges fired in provin
22、g ground testing shall be observed for impact switch separation or breakup. If any impact switch fails to comply with the applicable requirement, the lot shall be rejected, 4.5 Test Method and Procedures 4.5.1 Materials, Components and Processes.-Compliance with all requirements of Section 3 of this
23、 specification shall be ascertained by current and continuing examination of in- spection and test data to determine that all components (parts, subassemblies, and materials) have been inspected and tested and found to comply with their respective drawing and specifi- cation requirements, and that a
24、ll specified manufacturing processes have been followed. 4.5.1.1 Visual and Mechanical Inspection.-The visual, 1 manual and mechanical insDections and tests shall verifs com- pliance with the requirements of Sections 3 and 5 of this specification in accordance with 4-4.2 herein, 4.5.2 Insulation Res
25、istance.-Minimum insulation resistance shall be tested with the impact switch placed over an electrically conductive mandrel. external dimensions (except threads) of an M409 windshield (dwg. 10534412). The mandrel shall include an Insulator Assembly (dwg. 10534417) or facsimile, and a dummy power su
26、pply (dwg. 9276238) having maximum envelope outside diameter. The power supply envelope shall be electrically connected to the windshield facsimile, and pr.ovision made to electrically connect the test impact switch cup to the test equipment at the dummy power supply forward end, The impact switch.b
27、eing tested shall be held down on the mandrel by a The mandrel shall have the form and maximum - 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-F-630b 13 77777Ob 0343334 b 9 MIL-F-63068 (PA) i5 + 5 pound load on the impact switch nose end. In
28、sulation re- sistance shall be measured between the mandrel and the impact switch cup after allowing a two (2) second (min.) charging time. 4.5.3 Dimensional Control of Cast, Stamped, or Molded Parts.-In place of the normal sampling associated with the classification of Defects, and subject to appro
29、val of the Government procuring agency, the optional sampling plans in paragraphs 4.5.3.1, 4.53.2, and 4.5.3.3 may be used for dimensional control of cast, stamped, or molded parts. Use of these optional plans is limited to those dimensions and features controlled by the tool, die, or mold cavity. F
30、or all specified tests, visual examinations, and examinations of dimensions or features not developed exclusively by the tool, die, or mold cavity, these optional plans are not applicable. In the event of in-process reject(s) during optional sampling, corrective action applicable to parts produced p
31、rior to the rejected, and subsequent to the last acceptable sample, shall require approval of the Government procuring agency. 4.5.3.1 Cast Parts.-A sample of at least five (5) parts (as cast) from each cavity shall be dimensionally inspected to qualify a new or reworked cavity for use in production
32、 or as a control of the cavity during production. Inspection for control of each cavity during production shall be performed on the above quantities from each cavity after production of 5000 parts. If any defective parts are found. during qualification of the cavity, the cavity producing the defecti
33、ve part shall not be used in production. when inspection is performed for control of the cavity, the cavity producing the defective part shall be remomed from production. Further, that portion of production since the last control check shall be returned for corrective action. All cavities formerly r
34、emoved from production because of some fault,may, after reworking, be returned to production providing they pass the qualification test specified above. Stamped Parts.-A sample of at least ten (10) parts shall be dimensionally inspected to qualify the tool used in the stamping process for use In pro
35、duction. In addition, a random sample of five (5) parts shall be selected from the last portion of each hours production for dimensional inspection as a control of the tool during production-. If any defective parts are found during qualification of the tool, the tool producing the defective part sh
36、all not be used in production. Individual cavity identification must be provided. If any defective parts are found 4.5.3.2 If any defective parts are found when 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-inspection is performed for control of
37、 the tool, the tool producing B the defective part shall be removed from production. Further, shall be returned for corrective action. All tools removed from rsroduction because of some fault, may. after reworking. be returned I I The -molded parts shall carry the individual cavity identifi- cation.
38、 As a control of each cavity during Droduction. the I inspected after continuous production of each 5,000 parts or at the end of each week, whichever occurs first. If any defective parts are found during qualification of the cavity, is performed for the control of the cavity, the cavity-pro- ducing
39、the defective Dart shall be removed from twoduction. I check shall be returned fr corrective action. All cavities removed from production because of some fault, may, after reworking, be returned to production, providing they pass the aualification test above. - a Government proving ground in accorda
40、nce with the applicable 1 Acceptance ,Test Procedure. The sample cartridges shall be fired I be made for proper functioning-and for parts separation or breakup in the gun bore or in flight prior to target impact. Smear cameras shall be positioned to record the initial portion of pro- fired for graze
41、 functioning at a-gravel impact Field, at a range of 1000 meters. -. I “ - - ethylene film bag. Size-of bag to Le 10. inches-open face x 22. h I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63068 13 7777706 0343336 T H MIL-F-63068 (PA) inche
42、s deep. The bag may be tapered at the bottom to coincide with the contour of the impact switch. Switches shall be inserted nose down in the bag and the excess material at the top shall be inserted within the switch. Pack 30 bagged switches, within half- slotted partitions, in a Type CF, domestic cla
43、ss, variety DW, 275 grade, RSC style fiber box Spec PPP-3-636. The inside dimensions of fiber box to be 18 3/8 x 12 l/4 x 18 1/11 high. dimensions of the half-slotted partitions shall be 18 1/4 x 12 i/8 x i7 high. Each cell of the partitions shall be 6 inches square x i7 high. The material used for
44、the partitions shall be of same material as fiber box except variety SW may be used. Pack five switches nose up in each of six compartments. Add a filler of the same materia1 as the fiber box between the inner and outer flaps on bottom and top of fiber box. Tape fiber box in accordance with Spec PPP
45、-B-636 as applicable for boxes overpacked or shipped as exterior containers. The overall 5.1.2 Level B.-In addition to fiber box specified in Level C, overpack fiber box in a Class E, Spec MIL-B-117 bag after blunting corners of box. Exhaust all excess air within bag and seal bag in accordance with
46、Spec MIL-P-116. Size of bag to be 32 min. open face x 34 min. deep. Pack 12 bagged fiber boxes (3 x 2 x 2 high) in an overseas type wood cleated-plywood box in accordance with Spec PPP- B-601. Box to be provided with skids in accordance with Para. 3.3.3 of Spec. Requirements for box to be for 440 po
47、und contents (Ref Table III). Inside dimensions of box to be 38 1/2 x 37 3/4 x 38 3/4 high. sides and top as required for tight packing. Filler material to comply with Spec MIL-B-3106 or MIL-F-50449. Add filler material 36 x 36 x 1/16 thick on ends, 5.2 Marking 5.2.1 Level C.-Marking of fiber box to
48、 be in accordance with MIL-STD-1169. 5.2.2 Level B.-Marking of fiber box, bag, and box to be in 6. NOTES accordance with Level A, MIL-STD-1169. 6.1 Intended Use.-The part covered by this specification is 6.2 Ordering Data.-See MIL-A-48078. (PA). intended for use as part of the M539, PIBD, Fuzing Sys
49、tem. 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63068 (PA) 6.3 Submission of Designs for Approval.-See 6.2.3 of MIL-A-48078 (PA) . Submit equipment designs, as required, to: Commander Picatinny Arsenal Dover, New Jersey 07801 ATTN: SARPA-&A-T-T 6.4 Inspect
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